Home / 19,917.78-29,837.79-15,514.62

Finding the Fourth Proportional to 19,917.78, 29,837.79 and 15,514.62

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Solution

The fourth proportional to 19,917.78, 29,837.79 and 15,514.62 is: 23,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.78 : 29,837.79 = 15,514.62 : x
  2. Step 2: Convert to fraction form
    19,917.78/29,837.79 = 15,514.62/x
  3. Step 3: Cross multiply
    19,917.78x = 29,837.79 × 15,514.62
  4. Step 4: Simplify right side
    19,917.78x = 462,921,973.49
  5. Step 5: Solve for x
    x = 462,921,973.49/19,917.78
  6. Step 6: Final answer
    x = 23,241.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.